Pregnancy

10. Food aversions

If you're newly pregnant, it's not uncommon to feel repelled by the smell of a bologna sandwich or a cup of coffee, and for certain aromas to trigger your gag reflex. Though no one knows for sure, this may be a side effect of rapidly increasing amounts of estrogen in your system. You may also find that certain foods you used to enjoy are suddenly completely repulsive to you.

9. Mood swings

It's common to have mood swings during pregnancy, partly because of hormonal changes that affect your levels of neurotransmitters (chemical messengers in the brain). Everyone responds differently to these changes. Some moms-to-be experience heightened emotions, both good and bad; others feel more depressed or anxious.

Note: If you've been feeling sad or hopeless or unable to cope with your daily responsibilities, or you're having thoughts of harming yourself, call your healthcare provider or a mental health professional right away.

8. Abdominal bloating

Hormonal changes in early pregnancy may leave you feeling bloated, similar to the feeling some women have just before their period. That's why your clothes may feel more snug than usual at the waistline, even early on when your uterus is still quite small.

7. Frequent urination

Shortly after you become pregnant, hormonal changes prompt a chain of events that raise the rate of blood flow through your kidneys. This causes your bladder to fill more quickly, so you need to pee more often. This symptom may start as early as six weeks into your first trimester.

Frequent urination will continue – or intensify – as your pregnancy progresses. Your blood volume rises dramatically during pregnancy, which leads to extra fluid being processed and ending up in your bladder. The problem is compounded as your growing baby exerts more pressure on your bladder.

6. Fatigue

Feeling tired all of a sudden? No, make that exhausted. No one knows for sure what causes early pregnancy fatigue, but it's possible that rapidly increasing levels of the hormone progesterone are contributing to your sleepiness. Of course, morning sickness and having to urinate frequently during the night can add to your sluggishness, too.

You should start to feel more energetic once you hit your second trimester, although fatigue usually returns late in pregnancy when you're carrying around a lot more weight and some of the common discomforts of pregnancy make it more difficult to get a good night's sleep.